Microflora y conodontos del Mississippiense en la Fm Gévora (núcleo del Sinforme La Codosera-Puebla de Obando, SO de la Zona Centroibérica)

  1. R. Rodríguez González 1
  2. P. Medina Varea 2
  3. F. González Lodeiro 3
  4. L.M. Martín Parra 4
  5. D. Martínez Poyatos 3
  6. J. Matas 4
  1. 1 Universidad de León
    info

    Universidad de León

    León, España

    ROR https://ror.org/02tzt0b78

  2. 2 Universidad Complutense de Madrid
    info

    Universidad Complutense de Madrid

    Madrid, España

    ROR 02p0gd045

  3. 3 Universidad de Granada
    info

    Universidad de Granada

    Granada, España

    ROR https://ror.org/04njjy449

  4. 4 Instituto Geológico y Minero de España
    info

    Instituto Geológico y Minero de España

    Madrid, España

    ROR https://ror.org/04cadha73

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Revista:
Revista de la Sociedad Geológica de España

ISSN: 0214-2708

Any de publicació: 2007

Volum: 20

Número: 1-2

Pàgines: 71-88

Tipus: Article

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Altres publicacions en: Revista de la Sociedad Geológica de España

Resum

The Gévora Fm widely outcrops in the core of the La Codosera-Puebla de Obando Synform. It is a slaty succession with interbedded sandstones, olistoliths, limestones and diabases. The Gévora Formation and interbedding limestones have been previously correlated with several Devonian formations; however, our biostratigraphical results indicate a Visean age for this Formation. Two slate samples (P2 and P5, located between the Alburquerque and Puebla de Obando villages), have yielded miospore assemblages from Visean age, and of middle/late Visean - upper Visean age, respectively. Futhermore, a limestone sample (C1, La Calera Limestone, located Northwest of La Codosera village) have yielded a conodont assemblage of late early Visean - Serpukhovian age. In addition, a second limestone sample (C2, San Antonio Limestone) contains conodonts of Tournaisian - Serpukhovian age. These data, together with facies similarity, lead us to include the Gévora Formation in the Mississippian «Culm of Pedroches» flysch succession. In fact, La Codosera-Puebla de Obando Synform is the western prolongation of the vast Carboniferous outcrop in Pedroches. These Carboniferous outcrops are bounded to the North by the Puente Génave-Castelo de Vide Shear Zone, which has been recently proposed as the boundary between the Domain of the Schist-Greywacke Complex and a ‘southern Central Iberian domain’ which exhibits a distinctive geology.

Fuente de los datos: Dialnet